Data released on May 8 by the UK’s Intensive Care National Audit & Research Centre (ICNARC) shows the mortality rate for 4287 COVID 19 patients who received advanced respiratory support was 58.8%. This figure is much lower than percentages of 86% to 97% as reported in earlier studies included in my March 30 post on this topic.
Advanced respiratory support was needed in 71% of 6143 critically ill patients with reported outcomes and was defined as invasive ventilation, bilevel positive airway pressure (BiPAP) via endotracheal tube or tracheostomy, continuous positive airway pressure (CPAP) via endotracheal tube, or extracorporeal respiratory support (known as ECMO in the US).
For folks under 50, the mortality rate was 32%. Among those 50 and older, 65% died. These rates are much improved over the numbers we saw initially from China.
Body mass index in the obesity range wasn’t linked to higher mortality, unlike other studies we’ve seen.
Steve Parker, M.D.